ARM: kirkwood: Add Plat'Home OpenBlocks A6 support

Add support for Plat'Home OpenBlocks A6 using the device tree
where possible.
This commit supports SATA, USB, ether and serial console.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

8 files changed, 131 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f1ba69c2496a..94561b500429 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -48,7 +48,8 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-dns320.dtb \
         kirkwood-nsa310.dtb \
         kirkwood-topkick.dtb \
         kirkwood-ts219-6281.dtb \
-        kirkwood-ts219-6282.dtb
+        kirkwood-ts219-6282.dtb \
+        kirkwood-openblocks_a6.dtb
 dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
         msm8960-cdp.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
new file mode 100644
index 000000000000..9a2606c8b78f
--- /dev/null
+++ b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
@@ -0,0 +1,39 @@
+/dts-v1/;
+
+/include/ "kirkwood.dtsi"
+
+/ {
+        model = "Plat'Home OpenBlocksA6";
+        compatible = "plathome,openblocks-a6", "marvell,kirkwood-88f6283", "marvell,kirkwood";
+
+        memory {
+                device_type = "memory";
+                reg = <0x00000000 0x20000000>;
+        };
+
+        chosen {
+                bootargs = "console=ttyS0,115200n8 earlyprintk";
+        };
+
+        ocp@f1000000 {
+                serial@12000 {
+                        clock-frequency = <200000000>;
+                        status = "ok";
+                };
+
+                serial@12100 {
+                        clock-frequency = <200000000>;
+                        status = "ok";
+                };
+
+                nand@3000000 {
+                        chip-delay = <25>;
+                        status = "okay";
+                };
+
+                sata@80000 {
+                        nr-ports = <1>;
+                        status = "okay";
+                };
+        };
+};
diff --git a/arch/arm/configs/kirkwood_defconfig b/arch/arm/configs/kirkwood_defconfig
index 1128d180eec6..93f3794ba5cb 100644
--- a/arch/arm/configs/kirkwood_defconfig
+++ b/arch/arm/configs/kirkwood_defconfig
@@ -33,6 +33,7 @@ CONFIG_MACH_NETSPACE_V2_DT=y
 CONFIG_MACH_NETSPACE_MAX_V2_DT=y
 CONFIG_MACH_NETSPACE_LITE_V2_DT=y
 CONFIG_MACH_NETSPACE_MINI_V2_DT=y
+CONFIG_MACH_OPENBLOCKS_A6_DT=y
 CONFIG_MACH_TOPKICK_DT=y
 CONFIG_MACH_TS219=y
 CONFIG_MACH_TS41X=y
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index 141b105ce8d9..d018ad4bcc3c 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -173,6 +173,13 @@ config MACH_NETSPACE_MINI_V2_DT
           Network Space Mini v2 NAS (aka SafeBox), using Flattened
           Device Tree.
 
+config MACH_OPENBLOCKS_A6_DT
+        bool "Plat'Home OpenBlocks A6 (Flattened Device Tree)"
+        select ARCH_KIRKWOOD_DT
+        help
+          Say 'Y' here if you want your kernel to support the
+          Plat'Home OpenBlocks A6 (Flattened Device Tree).
+
 config MACH_TOPKICK_DT
         bool "USI Topkick (Flattened Device Tree)"
         select ARCH_KIRKWOOD_DT
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
index b5bc33467590..8d2e5a96247c 100644
--- a/arch/arm/mach-kirkwood/Makefile
+++ b/arch/arm/mach-kirkwood/Makefile
@@ -38,4 +38,5 @@ obj-$(CONFIG_MACH_NETSPACE_MAX_V2_DT)	+= board-ns2.o
 obj-$(CONFIG_MACH_NETSPACE_LITE_V2_DT)  += board-ns2.o
 obj-$(CONFIG_MACH_NETSPACE_MINI_V2_DT)  += board-ns2.o
 obj-$(CONFIG_MACH_NSA310_DT)            += board-nsa310.o
+obj-$(CONFIG_MACH_OPENBLOCKS_A6_DT)     += board-openblocks_a6.o
 obj-$(CONFIG_MACH_TOPKICK_DT)           += board-usi_topkick.o
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 33c0bc1e2f3a..70eb01d96085 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -106,6 +106,9 @@ static void __init kirkwood_dt_init(void)
         if (of_machine_is_compatible("mpl,cec4"))
                 mplcec4_init();
 
+        if (of_machine_is_compatible("plathome,openblocks-a6"))
+                openblocks_a6_init();
+
         if (of_machine_is_compatible("usi,topkick"))
                 usi_topkick_init();
 
@@ -134,6 +137,7 @@ static const char *kirkwood_dt_board_compat[] = {
         "lacie,netspace_lite_v2",
         "lacie,netspace_mini_v2",
         "mpl,cec4",
+        "plathome,openblocks-a6",
         "usi,topkick",
         "zyxel,nsa310",
         NULL
diff --git a/arch/arm/mach-kirkwood/board-openblocks_a6.c b/arch/arm/mach-kirkwood/board-openblocks_a6.c
new file mode 100644
index 000000000000..e807e8cfdd44
--- /dev/null
+++ b/arch/arm/mach-kirkwood/board-openblocks_a6.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2012 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
+ * arch/arm/mach-kirkwood/board-openblocks_a6.c
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/clk.h>
+#include <linux/clk-private.h>
+#include "common.h"
+#include "mpp.h"
+
+static struct mv643xx_eth_platform_data openblocks_ge00_data = {
+        .phy_addr       = MV643XX_ETH_PHY_ADDR(0),
+};
+
+static unsigned int openblocks_a6_mpp_config[] __initdata = {
+        MPP0_NF_IO2,
+        MPP1_NF_IO3,
+        MPP2_NF_IO4,
+        MPP3_NF_IO5,
+        MPP4_NF_IO6,
+        MPP5_NF_IO7,
+        MPP6_SYSRST_OUTn,
+        MPP8_UART1_RTS,
+        MPP9_UART1_CTS,
+        MPP10_UART0_TXD,
+        MPP11_UART0_RXD,
+        MPP13_UART1_TXD,
+        MPP14_UART1_RXD,
+        MPP15_UART0_RTS,
+        MPP16_UART0_CTS,
+        MPP18_NF_IO0,
+        MPP19_NF_IO1,
+        MPP20_GPIO, /* DIP SW0 */
+        MPP21_GPIO, /* DIP SW1 */
+        MPP22_GPIO, /* DIP SW2 */
+        MPP23_GPIO, /* DIP SW3 */
+        MPP24_GPIO, /* GPIO 0 */
+        MPP25_GPIO, /* GPIO 1 */
+        MPP26_GPIO, /* GPIO 2 */
+        MPP27_GPIO, /* GPIO 3 */
+        MPP28_GPIO, /* GPIO 4 */
+        MPP29_GPIO, /* GPIO 5 */
+        MPP30_GPIO, /* GPIO 6 */
+        MPP31_GPIO, /* GPIO 7 */
+        MPP36_TW1_SDA,
+        MPP37_TW1_SCK,
+        MPP38_GPIO, /* INIT */
+        MPP39_GPIO, /* USB OC */
+        MPP41_GPIO, /* LED: Red */
+        MPP42_GPIO, /* LED: Yellow */
+        MPP43_GPIO, /* LED: Green */
+        0,
+};
+
+void __init openblocks_a6_init(void)
+{
+        /*
+         * Basic setup. Needs to be called early.
+         */
+        kirkwood_mpp_conf(openblocks_a6_mpp_config);
+        kirkwood_ehci_init();
+        kirkwood_ge00_init(&openblocks_ge00_data);
+}
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index f86fcced0bb1..3e079d1d99d0 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -134,6 +134,12 @@ void nsa310_init(void);
 static inline void nsa310_init(void) {};
 #endif
 
+#ifdef CONFIG_MACH_OPENBLOCKS_A6_DT
+void openblocks_a6_init(void);
+#else
+static inline void openblocks_a6_init(void) {};
+#endif
+
 #ifdef CONFIG_MACH_TOPKICK_DT
 void usi_topkick_init(void);
 #else